BIOLOGY
ENZYMES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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enzymes catalyse chemical reactions in living organisms
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enzymes have a certain 3D shape that is important
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enzymes get used up in a chemical reaction
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enzymes convert substrate(s )into product(s)
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Detailed explanation-1: -Answer and Explanation: Of the following regarding enzymes, enzymes being consumed by the reaction they catalyze is incorrect. Enzymes are special in that they’re able to catalyze many different reactions without being consumed or used up by the specific reaction.
Detailed explanation-2: -Answer is (1) Enzymes are non-specific for a reaction and substrate.
Detailed explanation-3: -Answer and Explanation: Enzymes are not destroyed during chemical reactions, as this is part of the definition of a catalyst, and enables them to catalyze many different reactions continuously as long as there’s sufficient amount of substrate. All other statements are true about catalysts.
Detailed explanation-4: -Answer and Explanation: The answer is A. Enzymes increase the rate of chemical reaction by lowering activation energy barriers. Enzymes are biological catalysts.
Detailed explanation-5: -This statement about enzymes is true: Enzymes accelerate reactions by lowering the activation energy. Enzymes are proteins whose three-dimensional form is key to their function. Enzymes do not alter the overall change in free energy for a reaction.